Damaged clutch hub splines?
#71
02-10-2018, 01:27 PM
Seasoned HDF Member
#72
02-10-2018, 01:53 PM
Intermediate
#73
02-10-2018, 04:58 PM
Seasoned HDF Member
Crap..8 year old post. Least I am pretty good at saying what I said while back
Seen that on my 04 and numerous times on here.
I think the part is a close quality powder steel investment casting that requires little finial material removeal in machining. After machining, it goes through a heat treatment process to harden it. When they quench it in oil after removing from the oven, that edge area is so hard, it cracks.
If the only problem is that edge and you have 80% of the spline. Slide it on and make sure you have no shake in the fit. It will be fine.
Seen that on my 04 and numerous times on here.
I think the part is a close quality powder steel investment casting that requires little finial material removeal in machining. After machining, it goes through a heat treatment process to harden it. When they quench it in oil after removing from the oven, that edge area is so hard, it cracks.
If the only problem is that edge and you have 80% of the spline. Slide it on and make sure you have no shake in the fit. It will be fine.
Last edited by Jackie Paper; 02-10-2018 at 05:03 PM.
#74
02-12-2018, 03:24 PM
Intermediate
RIPSAW I thought the same originally, but after taking the inner hub apart I don't think it is....the reason is the way it goes together. The out side of the hub is held tight by the washer being pinched between the end of the shaft and the nut. This creates force points at the washer contact point and the first 3/8" or so of the inside splines of the hub, kind of a shimmy effect.... simply put I don't think enough of the shaft splines are in contact with the hub, so they shear.. I think the after market hubs are slightly wider and create more clamping force between the hub nut and bearing race on back side, which creates a flat pull on the hub against the shaft as opposed to the side pull of stock... side pull because primary chain doesn't pull from center of hub which creates load on back side (inner side) which is transfered to the first 3/8" or so of the spline instead of the whole spline....but just my opinion on it....Ride Safe!
#78
03-25-2018, 07:25 AM
Seasoned HDF Member
#79
03-25-2018, 07:31 AM
Stage III
Join Date: Mar 2018
Location: Lakemore, Ohio
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
#80
03-25-2018, 08:07 AM
Seasoned HDF Member
.....chain tension, if it is too tight it will pull on the clutch putting the ring gear on an angle. Then the jack shaft will have a hard time engaging. You may be able to see evidence of this on the inner primary. There will be a witness mark behind the ring gear between 8 and 10 o'clock where the ring gear has been rubbing on the inner primary.